Can someone please help me? I’m confused on how to answer these questions. Here is a link to the simulation if it helps: http://contentstore. ple. platoweb. com/content/sharedmedia/phet_sims_b atch1/electric-field-of-dreams/elec tric-field-of-dreams. html

Please try to answer all 5 questions and explain them thank you

Which of the following changes to a pipe would increase the conductance by a factor of 12? 1.quadrupling the length and tripling the radius.2.reducing the length by a factor of and doubling the radius.3.tripling the length and reducing the radius by a factor of .4.reducing the length but a factor of and doubling the radius.

An electric current is flowing through the cord below.what will happen to this current if a magnet is brought near the cord? a. the electric current will stop flowing. b. it will exert a force on the voltage. c. the resistance of the wire will decrease. d. it will exert a force on the electric current.

Assume similar data for the motion of the blood in your aorta. estimate how many beats of the heart it will take the blood to get from your heart to your brain. (assume that the distance from your heart to your brain is 30 cm)